【简答题】
A、11I<sub>m1sub>-3I<sub>m2sub>=5 B、11I<sub>m1sub>+3I<sub>m2sub>=5 C、11I<sub>m1sub>+3I<sub>m2sub>=-5 D、11I<sub>m1sub>-3I<sub>m2sub>=-5
A、I<sub>1sub>-I<sub>2sub>+I<sub>3sub>=5A B、I<sub>1sub>-I<sub>2sub>+I<sub>3sub>=-5A C、-I<sub>1sub>+I<sub>2sub>-I<sub>3sub>=0 D、I<sub>1sub>+I<sub>2sub>+I<sub>3sub>=0